These probably apply to industrial solar panel use. For a homeowner rising it off with a hose a few times a year (in the desert it may be needed more often). Around here (Virginia) there are a couple of houses with solar panels, they get less efficiency in the winter (sun angle) and need to rinse them off in the spring when we get a lot of yellow tree pollen.
Other than they they say their home unit is very low maintenance. They see the biggest benefit in the summer to help cut cooling costs.
WW
I wonder how much that "self cleaning surface" adds to the cost of the panels and if it is really effective? Sounds like a gimmick that probably wouldn't work very well. Probably be useless in a desert environment (where solar is the most effective) without any water droplets to slide down the panels.
I have mentioned this in other Environmental Wacko threads but it is worth repeating here.
I have a good friend who is an executive with Duke Energy. We went to graduate engineering school together and have maintained contact over the years.
I asked him why Duke would be doing something so dumb as to build solar farms. He is a real Engineer and knows the technology is stupid as much as the rest of us Engineers that took a course in Thermal Dynamics.
His answer:
1. Duke, as many other power companies, in the US gets operating and capital funding from mostly European banks. The Euro banks give better rates and conditions than American banks. However, they are operating under the idiotic EU requirements to be Green. Therefore Duke has to demonstrate compliance to the commitment to be carbon neutral by 2050.
2. The stupid US government gives all kinds of environmental incentives, tax breaks and even grants to build the damn things.
3. The utilities companies in the US can mostly cover the cost of the solar and wind farms by increasing rates to the customers. It cost the companies very little.
In other words the decision to created these idiotic solar and wind farms is not based upon sound engineering but by stupid political reason and that will come back and bite us in the ass one of these days.
The Eurotrash are looking for a very cold winter this year because of their stupid decision to go carbon free. Shutting down fossil fuel and nuclear plants while building solar and wind farms and looking to the Russians to provide them with natural gas is going to be a disaster for them.
The same kind of disaster the US will have in a few years because we are just as stupid as they are.